SKF NKI 40/20 40 mm ID Roller Bearing Needle, 55 mm OD

RS Stock No.:: 209-2399
Mfr. Part No.:: NKI 40/20
Brand:: SKF

SKF NKI 40/20 40 mm ID Roller Bearing Needle, 55 mm OD

View all Roller Bearings

Subtotal (1 unit)*

£54.49

(exc. VAT)

£65.39

(inc. VAT)

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Shipping from 22 May 2026

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Units	Per unit
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*price indicative

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RS Stock No.:: 209-2399
Mfr. Part No.:: NKI 40/20
Brand:: SKF

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	SKF
	Product Type	Roller Bearing
	Inside Diameter	40mm
	Race Width	20mm
	Bore Type	Cylindrical
	Cage Material	Sheet Metal
	Number of Rows	1
	Outside Diameter	55mm
	Static Load Rating	65.5kN
	End Type	Shielded
	Standards/Approvals	No
	Limiting Speed	10000rpm
	Dynamic Load Rating	31.4kN
	Bearing Type	Needle

	Select all
	Brand SKF
	Product Type Roller Bearing
	Inside Diameter 40mm
	Race Width 20mm
	Bore Type Cylindrical
	Cage Material Sheet Metal
	Number of Rows 1
	Outside Diameter 55mm
	Static Load Rating 65.5kN
	End Type Shielded
	Standards/Approvals No
	Limiting Speed 10000rpm
	Dynamic Load Rating 31.4kN
	Bearing Type Needle

Datasheet - NKI 40/20

SKF Needle Roller Bearing, 40mm Inside Diameter, 55mm Outside Diameter - NKI 40/20

This needle roller bearing is designed for superior performance in various industrial applications. With a 40mm inside diameter and a race width of 20mm, it combines precision engineering and robust construction from high-quality steel. This bearing is built to accommodate high load capacities while maintaining efficient operation in demanding environments.

Features & Benefits

• Machined rings enhance durability and performance

• Steel construction ensures longevity and reliability

• Single row design optimises load distribution

• Limiting speed of 10,000 rpm for high-speed usage

Applications

• Used with automation equipment for precise motion control

• Ideal for electronic devices requiring compact, reliable support

• Suitable for mechanical assemblies where space is limited

• Applied in heavy machinery for dependable load handling

What load ratings are associated with this bearing?

The static load rating is 57 kN, while the dynamic load rating is 32 kN, making it suitable for applications that need to handle various load conditions.

What considerations are there regarding the installation of this bearing?

Ensuring that the shaft and housing tolerances are properly met is crucial for optimal performance, along with maintaining the specified radial internal clearance.

What specific factors influence the selection of this bearing type?

Selection is influenced by load ratings, operational speed requirements, and environmental conditions, including temperature limits where it operates best.

How does the single-row design impact performance?

This design provides efficient load distribution and stability, making it ideal for compact setups that require reliable and robust movement.